Gas under pressure liquefies, which is what is actually in those canisters and tanks. As you work on the torch, you're taking some of that pressure off, which chills down the liquefied gas and slows...

You can't do soft glass marbles without annealing them properly, trust me, but I have had some luck with small marbles made from strips cut from Spectrum stained glass, which is roughly 96 CoE and a...

I wrap the wire around the bead and then just roll the whole thing in the flame--it forms those little beads all by itself. Spot heating the end of the wire doesn't really work at that fine a gauge....